Valved-pipe coupling.



PATENTED MAR. 29, 1904. M. T. QUIGLBY. VALVED PIPBGOUPLING.

APPLICATION FILED FEB. 24. 1902.

2 SHEETS-SHEET 2.

ATTORNEYS HE NORRIS versus :0 wnsnmsron u c 4.0 i in which likefiguresof reference indicate cor 45 1 .1 a each other.

UNITED' STATES Patented March 29, 1904.

PATENT! OFFICE.

MATTHEW T. QUIGLEY, OF NEWARK, NEW JERSEY.

1 VALVED-PIPE COUPLING.

SPECIFICATION forming part of Letters Patent No. 756,053, dated March29, 1904.

Application filed February 24, 1902. Serial 110. 95,239. (No model.)

To all whom it may concern.- Be it known that I, MATTHEW T. QUIGLEY, a

citizen of the United States, residing at Newark, in the county of Essexand State of New Jersey, have invented certain new and usefulImprovements inValvd-Pipe Couplings; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will-enable others skilled in the art to which it appertainsto-make and use the same, reference being had to the accompanyingdrawings, and to flgures of reference marked thereon, which form a partof this specification.

The objects of this invention are to enable two pipes or ducts, one orboth of which are? provided with closing-valves at their meeting endsand are receiving at their other ends some fluid under pressure-eatswater, steam, or airto be coupled together at said meeting ends, andtheirinteriors thereby placed in communication with-each other; tosecure an au' tomatic opening and closingof the valves as the pipes areconnected or disconnected: to, obtain a prompt action of the valves anda locationof said valves close to the extreme ends of the pipes; toenable the coupling to be separated by a straight pull; tosecure asimpleconstruction and, at the same time one which shall be positive initsaction, and to obtain other advantages and results, some of which may bereferred to hereinafter in connection with the description of theworking parts.

The invention consists in the improved valved-pipe coupling and in thearrangements and combinations'of parts of'the .same, all substantiallyaswill be hereinafterset forth and finally embracedinthe clauses of theclaim. V 1 Referring to. the accompanying drawings,

responding parts in each of the several figures,- Figure 1 is alongitudinal central section'of two pipe ends connected by my improvedcoupling and opened into communication with Fig. 2 is a similarsectional view of the 'male m'ember,and'Fig. 3 is a front end view ofthe same. Fig. A: is a longitudinal centralsection of the femalecoupling member. Fig. 5 is a front end view of the same,

and Fig. 6 is a cross-section on line 00, Fig. 4:. Fig. 7 is a view,partly in section, of two pipe ends entering into coupled relation.

, In said drawings, 2 indicates one pipe to which is bolted byunion-flanges 21 41a tubu lar valve-section 1, and to the opposite endof said valve-section 4 is similarly bolted, as by flanges 42 51, a malecoupling-section 5. Another pipe 6 is shown fitted with a valve-section7 like the one 4 above referred to and having bolted to saidvalve-section a female c,oup. ling-section 8. Said coupling-section 8has a. smooth tubular bore to telescopically receive.

the male member 5, and at its outer .end its walls are provided with aninterior recess 9 to receive packing 10, an annular nut 11 being adaptedto screw onto the said endof the female member and compress saidpacking, as is common in stuffing-boxes.

The male coupling member 5, comprises a tubular section of properoutside diameter to slide into the said female member, beingsmoothlyfinished and fittedfor this purpose.

Between each coupling member, male and female, and the pipe end to whichit is applied is a valve-section, which valve-sections are ex, actlyalike, so that a description of one willsuflice for both. Each comprisesa tubularcasting 12, having flanges at its opposite ends for bolting to.the pipe on one side and coupling member on the other, respectively. Atthe forward end of the said casting 12 is an in'- terior annular flange13, which may be either inserted or integraland in which is formed arearwardly-flaring ground-seat l ifor a conical valve15. Said valve 15has astem 16'extending backward along the central longitudinal line ofthe valve-section and provided next to ing an apertured cross-bargripped and held at its ends in the union of the valve-section and pipe2 (or 6.) The said slide 17 may' be any usual form of spider, butpreferably com-. prises a simple cross-piece 19, having feet 20, workingin longitudinal grooves or channels 21 in the inner walls of.thevalve-section. A spiral spring 22 around thevalve-stem 16 andbearing at its opposite ends against the slide 17 and guide18,respectively, may be employed to insure a prompt and positive seatingof the valve, although it is evident that the pressure of the contentsof the pipe would tend to do this anyway. It will be understood,therefore, that when the meeting pipe ends provided with my improvedcouplings are apart that the valves 15 close tightly at the ends of thepipes, so that the contents of said pipes are retained.

My invention further provides in each coupling member means adapted tobe operated by the act of coupling and effect an opening ofcommunication between the two pipes by opening the valves 15. In this itis desirable that the means for opening one valve be ind ependent fromthose for opening the other in event of different pressures in the twopipes against which the valves are to be opened. To this end I place inthe female coupling8 at'a suitable pointas, for instance, half-waybetween its endsa cross pin or bar 23, which is preferably insertedthrough an aperture 24: at one side of the coupling member into a recess25 in the opposite wall, the aperture 24 being then closed by ascrewplug 26, recessed at its inner end to receive the end of thecross-pin. Back of said cross-pin 23 or between it and the valvesection7 is a slide 27, of any suitable construction, but preferably similar tothe particular valve-slide 19 above described, and this slide 27 has arearwardly-projecting stem 28 passing through a central guide 29,clamped between the coupling and valve-section. When the valve 15 closesor seats itself, it abuts against the stem 28 and pushes the slide 27forward nearly to the cross-pin 23 under normal uncoupled condition. Themale coupling memher is slotted or recessed, preferably in V shape, atits forward end, as at 30, and thus adapted to straddle the pin 23 ofthe female member and with its two points or projections on either sideof said slot push the slide 27 of the female member, and thus open thevalve behind said member as the pipe ends are forced into coupledrelation. At the same time the said male member carries close to itsforward end an interior slide 31, having a Y rearward stem 32, reachingnearly to the valve ward to open the valve 15 back of the 15 back ofsaid male coupling member. The said slide preferably consists of adiametrically-disposed plate 33, resting at its ends in longitudinalgrooves or channels 37 in the inner walls of the coupling member, andthe rear end of the stem is supported by a guide 34, clamped between thecoupling member and Valvesection. The said piece 33, comprising theslide 31, is arranged across the slot 30 in the end of the male couplingmember, and thus as the male and female coupling members are broughttogether said slide strikes the cr sspin 23 of the female member and ispushed r af- 3. e coupling member simultaneously with the By theconstruction thus described I enable a simultaneous connection andcommunication to be effected between two pipe ends normally closed byvalves, and, furthermore, I enable the communication to be promptly andpositively shut off upon the pulling apart of the connection. Again, thevalves are located close to the extreme ends of the pipes, so that thereis little loss of contents on separation, and, moreover, said valves areautomatic in their action, both upon connection and disconnection.

Having thus described the invention, what I claim as new is 1. Thecombination of two pipe ends provided with cooperating male and femalecoupling members, respectively, and having normally closedinwardly-opening valves adjacent to said coupling members and beingadapted to both contain fluid under pressure, and valvereleasing meansin each coupling member 1 adapted upon connection of the pipe ends, tobe each engaged simultaneously by the other coupling member, whereby thetwo valves are opened at equal pace, said valve-releasing means beinentirely inclosed and protected by the coup ing members whendisconnected.

2. In a pipe-coupling, the combination of two tubular coupling membersadapted to be telescopically pushed together, each of said membershaving an interior slide forming a permanent part thereof, and eachmember providing a fixed interior portion adapted to engage the saidslide on the other member when coupling is effected and move the same.

3. The combination with a pipe end, of a coupling member and anoutwardly-closing valve back from said coupling member, means withinsaid coupling member for opening said valve inwardly, said means being apermanent feature of the coupling members, a cooperating couplingmember, and means therein for engaging the said valve-operating means onthe first-mentioned coupling member, said second valve-operating meansbeing also a permanent feature of the last-mentioned coupling member.

4:. The combination with pipe ends and valves therein, of tubularcoupling members rigidly attached one to each pipe end and adapted to bepushed telescopically together, slides in said coupling members adaptedto engage said valves, and interior fixed stops or rests on the couplingmembers adapted to independently engage said slides, said slides andstops being wholly inclosed by the coupling member when disconnected.

- 5. The combination with a pipe, of a tubular valve-section bolted tothe end thereof and having an outwardly-converging conical valve-seat, asliding valve for said seat and a spring to seat said valve, atubularpush coupling member bolted to the said valve-section, and a slidetherein abutting against the said valve and adapted to be engaged andoperated by a cooperating coupling member.

6. The herein-described pipe-coupling,oom prising a tubular male memberslotted at its end and having an interior valve-operating slide, atubular female member adapted to telescopically receive said male memberand -having interiorly a fixed transverse pin and valve-operating slide,and a valved pipeconnected to each coupling member.

7. The combination with meeting pipe ends, each provided with aninwardly-opening valve, of tubular male and female coupling membersconnected one to each pipe end and adapted to telescopically connectwith each other, the male member being slotted at its extremity and thefemale member having an interior fixed transverse pin adapted to entersaid slot, and slides in said coupling members adapted to be pushedoppositely apart and open the pipe-valves upon connection of the.coupling members.

8. The combination with two pipe ends and valves, of tubular couplingmembers rigidly attached thereto and adapted to be pushed telescopicallytogether, an interior transverse pin in one of said coupling members,avalve- MATTHEW T. .QUIGLEY.

Witnesses:

JOHN CAFFREY, RUssELL M. EVERETT.

